77350428 has 36 divisors (see below), whose sum is σ = 198449160. Its totient is φ = 25397856.

The previous prime is 77350423. The next prime is 77350451. The reversal of 77350428 is 82405377.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 77350392 and 77350401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77350423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13623 + ... + 18446.

Almost surely, 2^77350428 is an apocalyptic number.

It is an amenable number.

77350428 is an abundant number, since it is smaller than the sum of its proper divisors (121098732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77350428 is a wasteful number, since it uses less digits than its factorization.

77350428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32146 (or 32141 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 77350428 is about 8794.9092093097. The cubic root of 77350428 is about 426.0764922485.

The spelling of 77350428 in words is "seventy-seven million, three hundred fifty thousand, four hundred twenty-eight".